Fig. 1. Repeatable extension mechanism of space camera

Fig. 2. Development and collapse process of the deployable development and collapse mechanism

Fig. 3. Miura origami unit structure

Fig. 4. Various polyhedral column origami structures

Fig. 5. Partial folding structure of column origami unit

Fig. 6. Relationship between the outer envelope radius and the number of edges at different heights

Fig. 7. Relationship between the outer envelope radius and the number of edges at different inner envelope radius

Fig. 8. Cartesian coordinate system based on Miura unit

Fig. 9. Relationship between the radial expansion and collapse ratio and the angle

Fig. 10. Relationship between the axial expansion and collapse ratio and the angle

Fig. 11. Origami model

Fig. 12. Multi-layer insulation components （MLI）

Fig. 13. Relationship between rods temperature and time without protective cover

Fig. 14. Relationship between rods temperature and time with protective cover

Fig. 15. Internal temperature nephogram of mechanism under high temperature condition

Fig. 16. Axial temperature distribution of rods under high temperature condition

Fig. 17. Internal temperature nephogram of the mechanism under low temperature condition

Fig. 18. Axial temperature distribution of rods under low temperature condition

Fig. 19. Axial deformation value of the main mirror mounting ring surface under high temperature condition

Fig. 20. Deformation of the main mirror mounting ring surface under high temperature condition

Fig. 21. Axial deformation value of the main mirror mounting ring surface under low temperature condition

Fig. 22. Deformation of the main mirror mounting ring surface at low temperature condition

Fig. 23. Deformation and configuration changes of primary mirror mounting surface

Fig. 24. Deformation and configuration changes of primary mirror mounting surface

Fig. 25. Deformation diagram of main mirror mounting surface

Fig. 26. Mechanism development and collapse process

Fig. 27. Repeatable extension mechanism prototype

Fig. 28. Mechanism repeatability precision measurement